[GROOVY-9784] GroovyRowResult not assignable to Map<String, Object> with static type checker

• Type: Bug
• Status: Closed
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 2.5.13
• Fix Version/s: 4.0.0-alpha-1, 3.0.10
• Component/s: Static Type Checker
• Assignee: Unassigned
• Reporter: Mauro Molinari
• Created: 20/Oct/20 09:34
• Updated: 03/Feb/22 22:41
• Resolved: 21/Sep/21 15:49

Description

I don't know when it started to happen, but it worked somewhere in the past.

This code does not compile with 2.5.13:

 

package test

import groovy.sql.Sql
import groovy.transform.CompileStatic

@CompileStatic
public class Test {

	void foo() {
		Map<String, Object> r = new Sql((Sql) null).firstRow("")
	}
}

The error given is:

Groovy:[Static type checking] - Incompatible generic argument types. Cannot assign groovy.sql.GroovyRowResult to: java.util.Map <String, Object>

This is probably due to the fact that GroovyRowResult implements Map as a raw type, but IMHO Map<String, Object> should be the right generic interface for it, so perhaps an improvement can be made?